<!DOCTYPE HTML>
<html lang="en-US">
<head>
	<meta charset="UTF-8">
	<title>outline模仿边框效果</title>
<style type="text/css">
	div {
		width: 200px;
		margin: 20px auto;
		outline: 10px solid #ccc;
		padding: 20px;
	}
</style>	
</head>
<body>
	<div>outline模仿边框效果</div>
</body>
</html>